Section 57
Chapter 56,154

Tetra-kis (2-amino-4-methyl-pyridinium) cyclo-tetra-μ (2) -oxido-tetra-kis-[dioxido-vanadate (V) ] tetra-hydrate

Tabatabaee, M.; Ahadiat, G.; Molčanov, K.ši.

Acta Crystallographica. Section e Structure Reports Online 67(Part 8): M1090


ISSN/ISBN: 1600-5368
PMID: 22090866
DOI: 10.1107/s1600536811026912
Accession: 056153913

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The asymmetric unit of the title compound, (C(6)H(9)N(2))(4)[V(4)O(12)]·4H(2)O, contains half of a [V(4)O(12)](4-) anion, two 2-amino-4-methyl-pyridinium, (2a4mpH)(+), cations and two water mol-ecules. One water mol-ecule is disordered over two sets of sites with equal occupancies and the H atoms for this mol-ecule were not included in the refinement. The cation lies on an inversion center with four tetra-hedral VO(4) units each sharing two vertices, forming an eight-membered ring. In the crystal, the components are linked by inter-molecular N-H⋯O hydrogen bonds, forming a one-dimensional network along [100]. Further stabilization is provided by weak inter-molecular C-H⋯O hydrogen bonds. In addition, π-π stacking inter-actions with centroid-centroid distances of 3.5420 (18), 3.7577 (18) and 3.6311 (19) Å are observed.

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